About the Number

213840

213839 ← → 213841

2進数表記:110100001101010000

漢数字表記:二十一万三千八百四十

素因数分解:

2 4 × 3 5 × 5 1 × 11 1

素因数の和:39
約数の個数: 120
約数和(自身を含む): 812448
約数和(自身を除く): 598608

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 99, 108, 110, 120, 132, 135, 144, 162, 165, 176, 180, 198, 216, 220, 240, 243, 264, 270, 297, 324, 330, 360, 396, 405, 432, 440, 486, 495, 528, 540, 594, 648, 660, 720, 792, 810, 880, 891, 972, 990, 1080, 1188, 1215, 1296, 1320, 1485, 1584, 1620, 1782, 1944, 1980, 2160, 2376, 2430, 2640, 2673, 2970, 3240, 3564, 3888, 3960, 4455, 4752, 4860, 5346, 5940, 6480, 7128, 7920, 8910, 9720, 10692, 11880, 13365, 14256, 17820, 19440, 21384, 23760, 26730, 35640, 42768, 53460, 71280, 106920, 213840]

約数ペア:
[(1, 213840), (2, 106920), (3, 71280), (4, 53460), (5, 42768), (6, 35640), (8, 26730), (9, 23760), (10, 21384), (11, 19440), (12, 17820), (15, 14256), (16, 13365), (18, 11880), (20, 10692), (22, 9720), (24, 8910), (27, 7920), (30, 7128), (33, 6480), (36, 5940), (40, 5346), (44, 4860), (45, 4752), (48, 4455), (54, 3960), (55, 3888), (60, 3564), (66, 3240), (72, 2970), (80, 2673), (81, 2640), (88, 2430), (90, 2376), (99, 2160), (108, 1980), (110, 1944), (120, 1782), (132, 1620), (135, 1584), (144, 1485), (162, 1320), (165, 1296), (176, 1215), (180, 1188), (198, 1080), (216, 990), (220, 972), (240, 891), (243, 880), (264, 810), (270, 792), (297, 720), (324, 660), (330, 648), (360, 594), (396, 540), (405, 528), (432, 495), (440, 486)]

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